Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011iaus..280e..12l&link_type=abstract
The Molecular Universe, Proceedings of the 280th Symposium of the International Astronomical Union held in Toledo, Spain, May 30
Astronomy and Astrophysics
Astronomy
Scientific paper
The solar system's diverse assemblage of objects preserves and reflects the various stages in the formation of the solar system and its subsequent evolution. Jupiter's elemental and isotopic composition present an interesting history of addition of planetesimals from low temperature sources as well as a glimpse of the hydrogen-helium component preserved against the 4.5 billion years of fusion that have been going on in the Sun. A similar record for Saturn awaits an entry probe mission. Closer in to the Sun, the diversity of meteorite types and their asteroidal parent bodies present interesting dilemmas with respect to the origin of water, organics, and atmosphere on the Earth. The comets and Kuiper Belt objects preserve the coldest and most delicate remnants of early chemistry in the solar system, a bridge to the chemistry of the parent molecular cloud and the collapsing clump that became the solar system.
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